16781604

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{83}}^2$

素因数の和:209

約数の個数: 72

約数和(自身を含む): 46858560

約数和(自身を除く): 30076956

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 29, 42, 58, 83, 84, 87, 116, 166, 174, 203, 249, 332, 348, 406, 498, 581, 609, 812, 996, 1162, 1218, 1743, 2324, 2407, 2436, 3486, 4814, 6889, 6972, 7221, 9628, 13778, 14442, 16849, 20667, 27556, 28884, 33698, 41334, 48223, 50547, 67396, 82668, 96446, 101094, 144669, 192892, 199781, 202188, 289338, 399562, 578676, 599343, 799124, 1198686, 1398467, 2397372, 2796934, 4195401, 5593868, 8390802, 16781604]

約数ペア:

[(1, 16781604), (2, 8390802), (3, 5593868), (4, 4195401), (6, 2796934), (7, 2397372), (12, 1398467), (14, 1198686), (21, 799124), (28, 599343), (29, 578676), (42, 399562), (58, 289338), (83, 202188), (84, 199781), (87, 192892), (116, 144669), (166, 101094), (174, 96446), (203, 82668), (249, 67396), (332, 50547), (348, 48223), (406, 41334), (498, 33698), (581, 28884), (609, 27556), (812, 20667), (996, 16849), (1162, 14442), (1218, 13778), (1743, 9628), (2324, 7221), (2407, 6972), (2436, 6889), (3486, 4814)]